MonoGame.XNASamples/Samples/PushRecipe_WP7_SL/Source/WindowsPhone.Recipes.Push.Client/Converters/BoolBrushConverter.cs

using System;
using System.Net;
using System.Windows;
using System.Windows.Controls;
using System.Windows.Documents;
using System.Windows.Ink;
using System.Windows.Input;
using System.Windows.Media;
using System.Windows.Media.Animation;
using System.Windows.Shapes;
using System.Windows.Data;

namespace WindowsPhone.Recipes.Push.Client.Converters
{
    public class BoolBrushConverter : IValueConverter
    {
        private static readonly Brush DisabledBrush = new SolidColorBrush
        {
            Color = Colors.Black,
            Opacity = 0.4
        };
        
        public object Convert(object value, Type targetType, object parameter, System.Globalization.CultureInfo culture)
        {
            return object.Equals(value, true) ? null : DisabledBrush;
        }

        public object ConvertBack(object value, Type targetType, object parameter, System.Globalization.CultureInfo culture)
        {
            throw new NotSupportedException();
        }
    }
}